Brønsted Basicity of Solute Butylamine in an Aprotic Ionic Liquid Investigated by Potentiometric Titration

• Fujii Kenta

  Institute for Solid State Physics, The University of Tokyo

• Hashimoto Kei

  Institute for Solid State Physics, The University of Tokyo

• Sakai Takamasa

  Department of Bioengineering, School of Engineering, The University of Tokyo

• Umebayashi Yasuhiro

  Graduate School of Science and Technology Niigata University

• Shibayama Mitsuhiro

  Institute for Solid State Physics, The University of Tokyo

抄録

The quantitative Brønsted basicity of butylamine (BuNH₂) in the typical aprotic ionic liquid (IL) 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide, [C₂mIm⁺][TFSA⁻], is reported. Potentiometric titration was performed for BuNH₂ in the aprotic IL to experimentally determine the acid dissociation constant (pK_a) for butylammonium (BuNH₃⁺). The pK_a value was estimated to be 16.6(1), and it was found that the value is significantly larger than that in aqueous solution (pK_a = 10.6).

収録刊行物

• Chemistry Letters

  Chemistry Letters 42 (10), 1250-1251, 2013

  公益社団法人 日本化学会

キーワード

• General Chemistry

詳細情報

• CRID: 1390282679566425984
• NII論文ID: 10031201327
• NII書誌ID: AA00603318
• DOI: 10.1246/cl.130537
• COI: 1:CAS:528:DC%2BC3sXhs1yrsbbM
• ISSN: 13480715
• ISSN: 03667022
• Web Site: https://academic.oup.com/chemlett/article-pdf/42/10/1250/55636221/cl.130537.pdf
• 本文言語コード: en
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